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    Warm Roof - Celotex XR4000 Insulation Board

    New Roof Vaulted Ceiling 8"x2" (203mmx50.8mm) Joists I plan to leave a 50 mm airgap and then use 110mm Celotex XR4000 Insulation Board. Do I also need to leave an airgap between plasterboard and Celotex? I assume not? I may consider using 150mm Celotex XR4000 Insulation Board if no airgap is...
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    Pitched or Flat (EPDM?) Roof

    Ta, no mention of pitched roof windows on their website. I have emailed them.
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    Pitched or Flat (EPDM?) Roof

    3000x1000 Luxlite landscape window = £2,153.00 Opening window = £350 Electric blinds = £695 Total = £3198 + VAT £3837.60! I will require 2 of the above so nearly £8k! Bit more than I imagined. VELUX do not offer a window the size of the above. Has any one had any dealings with Luxlite? Or...
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    Pitched or Flat (EPDM?) Roof

    Something like this > LUXLITE - Roof Maker (roof-maker.co.uk) Have to say it looks better than the smaller Velux windows :D That's deep. Just had a look at Zinc roofs, looks interesting. No idea of what costs are though!
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    Pitched or Flat (EPDM?) Roof

    Firstly, this is not a post to show off a pool (before any one makes any negative comments) :) Can I kindly get some opinions on Flat v Pitched roof, please? I am stuck between the 2, and have been for a while! I have added a few pictures below. Dormer Bungalow Area of extension in question is...
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    Thermolite or Fibolite

    Thanks both. so in simple DIY terms, which is the better block? Which has the better U value?
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    Thermolite or Fibolite

    Have my bricky starting on a ground floor build soon. External - standard concrete blocks Internal - What are the pro and con of using Thermolite v Fibolite ? Thank you.
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    RSJ - Beam and Block query

    Area size approx 9.5mx7m x2 RSJ 254x254x89UC 6.6m 3m Concrete beams - 150mm height Concrete blocks for infill are 100mm height 3 bays to be installed in total. Understood that when the blocks sit into the concrete beams they will be flush. This however will not be the case when the...
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    Minimum screed depth for UFH

    Slab is 200mm as it’s steel reinforced specd due to it being a basement floor. Thanks. I was thinking around the 50mm for the screed.
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    300mm Hollow Concrete Blocks

    I actually cannot find any where in the UK that does that size. I have located them in the states though!
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    Which roof/sky light - advice please! Diagrams attached.

    did think about that, area is approx just under 100m2.... having such a large flat roof not cause issues?
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    Which roof/sky light - advice please! Diagrams attached.

    Drop the sky pods then :-(
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    Which roof/sky light - advice please! Diagrams attached.

    Strange, i could see them on PC but not mobile. I have reloaded... should be ok now.
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    Which roof/sky light - advice please! Diagrams attached.

    Deleted - Thanks.
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    Excavation costs

    Will be done separately.
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    Excavation costs

    Hi Andy, Sorry i should have added... I already have a 1m drop in the garden - hence the need to only go a further 2m.
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    Excavation costs

    Midlands. Property is on the corner so area can be accessed directly from the street.
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    Excavation costs

    How much should I be looking at to get an area excavated (for a basement build). Rear garden lawn - not exactly sure what lies under, rock, clay etc. Approx. area to be excavated is: 150m3 9mx9mx2mdepth. Would be good to know approx. figures whilst i wait on quotations.
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    Building close to man hole

    Foul water pipes start from my property so on my land they are private. I have 1 man hole on my property (FM1 on diagram) which i shall not be building over anyway. Blue shaded area is extension planned. Neighbours man hole sits just on their side of the boundary line. I am planning a...
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    Filling sub floor void with concrete

    I have a wooden subfloor in my 1950s bungalow - hate the cold drafty floor! I have some work starting soon for an extension and will have a vast amount of soil which i will need to dispose of. I am thinking I could use some of the soil to fill the existing subfloor to get up to a level to...
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